a particular appearance or state in a regularly recurring cycle of changes
a distinguishable part in a course, development, or cycle
an aspect or part (as of a problem) under consideration
the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, oscillation, or variation has advanced from its standard position or assumed instant of starting
a homogeneous, physically distinct, and mechanically separable portion of matter present in a nonhomogeneous physicochemical system
an individual or subgroup distinguishably different in appearance or behavior from the norm of the group to which it belongs
to adjust so as to be in a synchronized condition
to conduct or carry out by planned phases
to introduce in stages —usually used with in